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47 lines
1.5 KiB
Go
47 lines
1.5 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cm
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import (
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"k8s.io/api/core/v1"
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evictionapi "k8s.io/kubernetes/pkg/kubelet/eviction/api"
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)
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// hardEvictionReservation returns a resourcelist that includes reservation of resources based on hard eviction thresholds.
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func hardEvictionReservation(thresholds []evictionapi.Threshold, capacity v1.ResourceList) v1.ResourceList {
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if len(thresholds) == 0 {
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return nil
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}
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ret := v1.ResourceList{}
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for _, threshold := range thresholds {
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if threshold.Operator != evictionapi.OpLessThan {
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continue
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}
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switch threshold.Signal {
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case evictionapi.SignalMemoryAvailable:
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memoryCapacity := capacity[v1.ResourceMemory]
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value := evictionapi.GetThresholdQuantity(threshold.Value, &memoryCapacity)
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ret[v1.ResourceMemory] = *value
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case evictionapi.SignalNodeFsAvailable:
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storageCapacity := capacity[v1.ResourceEphemeralStorage]
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value := evictionapi.GetThresholdQuantity(threshold.Value, &storageCapacity)
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ret[v1.ResourceEphemeralStorage] = *value
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}
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}
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return ret
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}
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